Finding the Fourth Proportional to 56,053.32, 77,354.16 and 30,903.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,053.32 : 77,354.16 = 30,903.72 : x
2. Step 2: Convert to fraction form
   56,053.32/77,354.16 = 30,903.72/x
3. Step 3: Cross multiply
   56,053.32x = 77,354.16 × 30,903.72
4. Step 4: Simplify right side
   56,053.32x = 2,390,531,301.48
5. Step 5: Solve for x
   x = 2,390,531,301.48/56,053.32
6. Step 6: Final answer
   x = 42,647.45