Finding the Fourth Proportional to 13,105,061.10, 19,657,591.65 and 12,358,565.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105,061.10 : 19,657,591.65 = 12,358,565.10 : x
2. Step 2: Convert to fraction form
   13,105,061.10/19,657,591.65 = 12,358,565.10/x
3. Step 3: Cross multiply
   13,105,061.10x = 19,657,591.65 × 12,358,565.10
4. Step 4: Simplify right side
   13,105,061.10x = 242,939,626,115,741.38
5. Step 5: Solve for x
   x = 242,939,626,115,741.38/13,105,061.10
6. Step 6: Final answer
   x = 18,537,847.65