Finding the Fourth Proportional to 21,300,274.68, 29,408,553.54 and 12,601,234.32

Step by Step Solution

1. Step 1: Write the proportion equation
   21,300,274.68 : 29,408,553.54 = 12,601,234.32 : x
2. Step 2: Convert to fraction form
   21,300,274.68/29,408,553.54 = 12,601,234.32/x
3. Step 3: Cross multiply
   21,300,274.68x = 29,408,553.54 × 12,601,234.32
4. Step 4: Simplify right side
   21,300,274.68x = 370,584,074,169,805.50
5. Step 5: Solve for x
   x = 370,584,074,169,805.50/21,300,274.68
6. Step 6: Final answer
   x = 17,398,088.98