Finding the Fourth Proportional to 77,783,470.32, 107,343,353.40 and 42,978,402.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,783,470.32 : 107,343,353.40 = 42,978,402.96 : x
2. Step 2: Convert to fraction form
   77,783,470.32/107,343,353.40 = 42,978,402.96/x
3. Step 3: Cross multiply
   77,783,470.32x = 107,343,353.40 × 42,978,402.96
4. Step 4: Simplify right side
   77,783,470.32x = 4,613,445,897,502,886
5. Step 5: Solve for x
   x = 4,613,445,897,502,886/77,783,470.32
6. Step 6: Final answer
   x = 59,311,391.98