Finding the Fourth Proportional to 8,139,152.16, 12,210,862.32 and 2,459,527.20

Step by Step Solution

1. Step 1: Write the proportion equation
   8,139,152.16 : 12,210,862.32 = 2,459,527.20 : x
2. Step 2: Convert to fraction form
   8,139,152.16/12,210,862.32 = 2,459,527.20/x
3. Step 3: Cross multiply
   8,139,152.16x = 12,210,862.32 × 2,459,527.20
4. Step 4: Simplify right side
   8,139,152.16x = 30,032,948,011,495.11
5. Step 5: Solve for x
   x = 30,032,948,011,495.11/8,139,152.16
6. Step 6: Final answer
   x = 3,689,935.69