Finding the Fourth Proportional to 387,503,282.32, 534,884,111.56 and 230,919,490.96

Step by Step Solution

1. Step 1: Write the proportion equation
   387,503,282.32 : 534,884,111.56 = 230,919,490.96 : x
2. Step 2: Convert to fraction form
   387,503,282.32/534,884,111.56 = 230,919,490.96/x
3. Step 3: Cross multiply
   387,503,282.32x = 534,884,111.56 × 230,919,490.96
4. Step 4: Simplify right side
   387,503,282.32x = 123,515,166,764,027,056
5. Step 5: Solve for x
   x = 123,515,166,764,027,056/387,503,282.32
6. Step 6: Final answer
   x = 318,746,117.52