Finding the Fourth Proportional to 77,561,872.38, 107,035,333.67 and 42,279,744.96

Step by Step Solution

1. Step 1: Write the proportion equation
   77,561,872.38 : 107,035,333.67 = 42,279,744.96 : x
2. Step 2: Convert to fraction form
   77,561,872.38/107,035,333.67 = 42,279,744.96/x
3. Step 3: Cross multiply
   77,561,872.38x = 107,035,333.67 × 42,279,744.96
4. Step 4: Simplify right side
   77,561,872.38x = 4,525,426,609,381,800
5. Step 5: Solve for x
   x = 4,525,426,609,381,800/77,561,872.38
6. Step 6: Final answer
   x = 58,346,020.67