Finding the Fourth Proportional to 42,849,233.62, 64,276,279.28 and 13,705,631.97

Step by Step Solution

1. Step 1: Write the proportion equation
   42,849,233.62 : 64,276,279.28 = 13,705,631.97 : x
2. Step 2: Convert to fraction form
   42,849,233.62/64,276,279.28 = 13,705,631.97/x
3. Step 3: Cross multiply
   42,849,233.62x = 64,276,279.28 × 13,705,631.97
4. Step 4: Simplify right side
   42,849,233.62x = 880,947,027,954,448.50
5. Step 5: Solve for x
   x = 880,947,027,954,448.50/42,849,233.62
6. Step 6: Final answer
   x = 20,559,224.84