Finding the Fourth Proportional to 139,007,385, 191,149,946.82 and 120,640,784.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,007,385 : 191,149,946.82 = 120,640,784.04 : x
2. Step 2: Convert to fraction form
   139,007,385/191,149,946.82 = 120,640,784.04/x
3. Step 3: Cross multiply
   139,007,385x = 191,149,946.82 × 120,640,784.04
4. Step 4: Simplify right side
   139,007,385x = 23,060,479,453,569,104
5. Step 5: Solve for x
   x = 23,060,479,453,569,104/139,007,385
6. Step 6: Final answer
   x = 165,893,916.02