Finding the Fourth Proportional to 99,549,084.68, 137,370,721.83 and 55,494,134.81

Step by Step Solution

1. Step 1: Write the proportion equation
   99,549,084.68 : 137,370,721.83 = 55,494,134.81 : x
2. Step 2: Convert to fraction form
   99,549,084.68/137,370,721.83 = 55,494,134.81/x
3. Step 3: Cross multiply
   99,549,084.68x = 137,370,721.83 × 55,494,134.81
4. Step 4: Simplify right side
   99,549,084.68x = 7,623,269,355,976,339
5. Step 5: Solve for x
   x = 7,623,269,355,976,339/99,549,084.68
6. Step 6: Final answer
   x = 76,577,995.48