Finding the Fourth Proportional to 13,120,990.30, 19,680,156.60 and 3,537,337.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,120,990.30 : 19,680,156.60 = 3,537,337.60 : x
2. Step 2: Convert to fraction form
   13,120,990.30/19,680,156.60 = 3,537,337.60/x
3. Step 3: Cross multiply
   13,120,990.30x = 19,680,156.60 × 3,537,337.60
4. Step 4: Simplify right side
   13,120,990.30x = 69,615,357,816,667.38
5. Step 5: Solve for x
   x = 69,615,357,816,667.38/13,120,990.30
6. Step 6: Final answer
   x = 5,305,648.14