Finding the Fourth Proportional to 13,227,870.32, 19,834,082.88 and 5,131,385.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,227,870.32 : 19,834,082.88 = 5,131,385.12 : x
2. Step 2: Convert to fraction form
   13,227,870.32/19,834,082.88 = 5,131,385.12/x
3. Step 3: Cross multiply
   13,227,870.32x = 19,834,082.88 × 5,131,385.12
4. Step 4: Simplify right side
   13,227,870.32x = 101,776,317,759,278.75
5. Step 5: Solve for x
   x = 101,776,317,759,278.75/13,227,870.32
6. Step 6: Final answer
   x = 7,694,081.91