Finding the Fourth Proportional to 77,123,391.55, 106,432,238.81 and 42,316,072.76

Step by Step Solution

1. Step 1: Write the proportion equation
   77,123,391.55 : 106,432,238.81 = 42,316,072.76 : x
2. Step 2: Convert to fraction form
   77,123,391.55/106,432,238.81 = 42,316,072.76/x
3. Step 3: Cross multiply
   77,123,391.55x = 106,432,238.81 × 42,316,072.76
4. Step 4: Simplify right side
   77,123,391.55x = 4,503,794,361,547,058
5. Step 5: Solve for x
   x = 4,503,794,361,547,058/77,123,391.55
6. Step 6: Final answer
   x = 58,397,254.99