Finding the Fourth Proportional to 139,014,790.98, 191,840,412.00 and 77,145,085.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,014,790.98 : 191,840,412.00 = 77,145,085.86 : x
2. Step 2: Convert to fraction form
   139,014,790.98/191,840,412.00 = 77,145,085.86/x
3. Step 3: Cross multiply
   139,014,790.98x = 191,840,412.00 × 77,145,085.86
4. Step 4: Simplify right side
   139,014,790.98x = 14,799,545,053,812,848
5. Step 5: Solve for x
   x = 14,799,545,053,812,848/139,014,790.98
6. Step 6: Final answer
   x = 106,460,218.73