Finding the Fourth Proportional to 139,582,784.07, 209,277,218.69 and 61,817,311.71

Step by Step Solution

1. Step 1: Write the proportion equation
   139,582,784.07 : 209,277,218.69 = 61,817,311.71 : x
2. Step 2: Convert to fraction form
   139,582,784.07/209,277,218.69 = 61,817,311.71/x
3. Step 3: Cross multiply
   139,582,784.07x = 209,277,218.69 × 61,817,311.71
4. Step 4: Simplify right side
   139,582,784.07x = 12,936,955,061,252,482
5. Step 5: Solve for x
   x = 12,936,955,061,252,482/139,582,784.07
6. Step 6: Final answer
   x = 92,683,027.84