Finding the Fourth Proportional to 77,783,394.32, 107,343,248.52 and 42,978,326.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,783,394.32 : 107,343,248.52 = 42,978,326.96 : x
2. Step 2: Convert to fraction form
   77,783,394.32/107,343,248.52 = 42,978,326.96/x
3. Step 3: Cross multiply
   77,783,394.32x = 107,343,248.52 × 42,978,326.96
4. Step 4: Simplify right side
   77,783,394.32x = 4,613,433,231,841,096
5. Step 5: Solve for x
   x = 4,613,433,231,841,096/77,783,394.32
6. Step 6: Final answer
   x = 59,311,287.10