Finding the Fourth Proportional to 99,674,973.47, 137,551,468.56 and 55,020,957.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,674,973.47 : 137,551,468.56 = 55,020,957.37 : x
2. Step 2: Convert to fraction form
   99,674,973.47/137,551,468.56 = 55,020,957.37/x
3. Step 3: Cross multiply
   99,674,973.47x = 137,551,468.56 × 55,020,957.37
4. Step 4: Simplify right side
   99,674,973.47x = 7,568,213,487,820,655
5. Step 5: Solve for x
   x = 7,568,213,487,820,655/99,674,973.47
6. Step 6: Final answer
   x = 75,928,924.03