Finding the Fourth Proportional to 12,112,667.88, 18,172,938.41 and 8,085,526.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,112,667.88 : 18,172,938.41 = 8,085,526.08 : x
2. Step 2: Convert to fraction form
   12,112,667.88/18,172,938.41 = 8,085,526.08/x
3. Step 3: Cross multiply
   12,112,667.88x = 18,172,938.41 × 8,085,526.08
4. Step 4: Simplify right side
   12,112,667.88x = 146,937,767,386,033.31
5. Step 5: Solve for x
   x = 146,937,767,386,033.31/12,112,667.88
6. Step 6: Final answer
   x = 12,130,916.90