Finding the Fourth Proportional to 9,012,072.02, 12,432,490.54 and 7,980,630.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,012,072.02 : 12,432,490.54 = 7,980,630.98 : x
2. Step 2: Convert to fraction form
   9,012,072.02/12,432,490.54 = 7,980,630.98/x
3. Step 3: Cross multiply
   9,012,072.02x = 12,432,490.54 × 7,980,630.98
4. Step 4: Simplify right side
   9,012,072.02x = 99,219,119,079,966.89
5. Step 5: Solve for x
   x = 99,219,119,079,966.89/9,012,072.02
6. Step 6: Final answer
   x = 11,009,579.03