Finding the Fourth Proportional to 139,359,458.86, 209,025,680.70 and 42,316,019.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359,458.86 : 209,025,680.70 = 42,316,019.44 : x
2. Step 2: Convert to fraction form
   139,359,458.86/209,025,680.70 = 42,316,019.44/x
3. Step 3: Cross multiply
   139,359,458.86x = 209,025,680.70 × 42,316,019.44
4. Step 4: Simplify right side
   139,359,458.86x = 8,845,134,767,960,432
5. Step 5: Solve for x
   x = 8,845,134,767,960,432/139,359,458.86
6. Step 6: Final answer
   x = 63,469,927.63