Finding the Fourth Proportional to 139,158,045.98, 208,737,068.97 and 139,158,045.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,158,045.98 : 208,737,068.97 = 139,158,045.98 : x
2. Step 2: Convert to fraction form
   139,158,045.98/208,737,068.97 = 139,158,045.98/x
3. Step 3: Cross multiply
   139,158,045.98x = 208,737,068.97 × 139,158,045.98
4. Step 4: Simplify right side
   139,158,045.98x = 29,047,442,640,414,004
5. Step 5: Solve for x
   x = 29,047,442,640,414,004/139,158,045.98
6. Step 6: Final answer
   x = 208,737,068.97