Finding the Fourth Proportional to 42,636,858.84, 63,979,666.56 and 18,042,848.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,636,858.84 : 63,979,666.56 = 18,042,848.28 : x
2. Step 2: Convert to fraction form
   42,636,858.84/63,979,666.56 = 18,042,848.28/x
3. Step 3: Cross multiply
   42,636,858.84x = 63,979,666.56 × 18,042,848.28
4. Step 4: Simplify right side
   42,636,858.84x = 1,154,375,416,747,069.75
5. Step 5: Solve for x
   x = 1,154,375,416,747,069.75/42,636,858.84
6. Step 6: Final answer
   x = 27,074,588.70