Finding the Fourth Proportional to 13,016,065.85, 17,961,781.59 and 7,135,498.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016,065.85 : 17,961,781.59 = 7,135,498.91 : x
2. Step 2: Convert to fraction form
   13,016,065.85/17,961,781.59 = 7,135,498.91/x
3. Step 3: Cross multiply
   13,016,065.85x = 17,961,781.59 × 7,135,498.91
4. Step 4: Simplify right side
   13,016,065.85x = 128,166,272,867,294.16
5. Step 5: Solve for x
   x = 128,166,272,867,294.16/13,016,065.85
6. Step 6: Final answer
   x = 9,846,775.09