Finding the Fourth Proportional to 13,009,039.58, 19,509,549.86 and 8,991,345.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,009,039.58 : 19,509,549.86 = 8,991,345.62 : x
2. Step 2: Convert to fraction form
   13,009,039.58/19,509,549.86 = 8,991,345.62/x
3. Step 3: Cross multiply
   13,009,039.58x = 19,509,549.86 × 8,991,345.62
4. Step 4: Simplify right side
   13,009,039.58x = 175,417,105,681,882.59
5. Step 5: Solve for x
   x = 175,417,105,681,882.59/13,009,039.58
6. Step 6: Final answer
   x = 13,484,247.21