Finding the Fourth Proportional to 12,693,905.50, 17,518,091.86 and 7,112,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,693,905.50 : 17,518,091.86 = 7,112,200.16 : x
2. Step 2: Convert to fraction form
   12,693,905.50/17,518,091.86 = 7,112,200.16/x
3. Step 3: Cross multiply
   12,693,905.50x = 17,518,091.86 × 7,112,200.16
4. Step 4: Simplify right side
   12,693,905.50x = 124,592,175,641,996.23
5. Step 5: Solve for x
   x = 124,592,175,641,996.23/12,693,905.50
6. Step 6: Final answer
   x = 9,815,117.63