Finding the Fourth Proportional to 39,960,931.10, 55,146,084.23 and 21,626,216.60

Step by Step Solution

1. Step 1: Write the proportion equation
   39,960,931.10 : 55,146,084.23 = 21,626,216.60 : x
2. Step 2: Convert to fraction form
   39,960,931.10/55,146,084.23 = 21,626,216.60/x
3. Step 3: Cross multiply
   39,960,931.10x = 55,146,084.23 × 21,626,216.60
4. Step 4: Simplify right side
   39,960,931.10x = 1,192,601,161,978,159.25
5. Step 5: Solve for x
   x = 1,192,601,161,978,159.25/39,960,931.10
6. Step 6: Final answer
   x = 29,844,178.53