Finding the Fourth Proportional to 272,947,123.63, 376,624,940.38 and 155,457,475.89

Step by Step Solution

1. Step 1: Write the proportion equation
   272,947,123.63 : 376,624,940.38 = 155,457,475.89 : x
2. Step 2: Convert to fraction form
   272,947,123.63/376,624,940.38 = 155,457,475.89/x
3. Step 3: Cross multiply
   272,947,123.63x = 376,624,940.38 × 155,457,475.89
4. Step 4: Simplify right side
   272,947,123.63x = 58,549,162,588,696,528
5. Step 5: Solve for x
   x = 58,549,162,588,696,528/272,947,123.63
6. Step 6: Final answer
   x = 214,507,344.17