Finding the Fourth Proportional to 9,012,056.14, 12,432,468.63 and 7,980,615.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012,056.14 : 12,432,468.63 = 7,980,615.10 : x
2. Step 2: Convert to fraction form
   9,012,056.14/12,432,468.63 = 7,980,615.10/x
3. Step 3: Cross multiply
   9,012,056.14x = 12,432,468.63 × 7,980,615.10
4. Step 4: Simplify right side
   9,012,056.14x = 99,218,746,878,854.31
5. Step 5: Solve for x
   x = 99,218,746,878,854.31/9,012,056.14
6. Step 6: Final answer
   x = 11,009,557.12